Re: [Iot-onboarding] SBOM : Basic question on how it will be used

Eliot Lear <lear@cisco.com> Thu, 26 March 2020 18:07 UTC

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From: Eliot Lear <lear@cisco.com>
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Date: Thu, 26 Mar 2020 19:07:22 +0100
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To: "M. Ranganathan" <mranga@gmail.com>
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Subject: Re: [Iot-onboarding] SBOM : Basic question on how it will be used
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Hi Ranga,

I think you ask a good question.  There is a broader picture of how you tie this to an entire software life cycle, that includes things like repeatable builds, remote attestation, etc.  This is just one component.  Having a good view of the whole picture is something that the NCCOE and others should definitely engage on.

> On 26 Mar 2020, at 18:55, M. Ranganathan <mranga@gmail.com> wrote:
> 
> I am starting this new thread on the subject as I am confused about
> how an SBOM will actually be used on a network and I don't want to
> divert the other thread.  Before I understand how it will get
> distributed, I'd like to start with some basic questions.
> 
> Given that there is no automated mechanism to actually check if the
> SBOM is consistent with the software that is bundled with the device
> is it regarded as being just informational (i.e. an additional piece
> of information about the device that the manufacturer ships)?  If the
> SBOM is informational and specific to the software that is actually on
> the device and you trust the software that is on the device, then I'd
> imagine the device could publish its own SBOM.

It can do this when it has the interfaces to do it.  In some cases it won’t.  That’s why I proposed three methods.

Eliot